ARX (operating system)

ARX
DeveloperAcorn Computers Ltd.
Written inModula-2+
OS familyUnix-like
Working stateDiscontinued
Marketing targetLow cost paperless office computing workstation
Available inEnglish
Supported platformsARM
Kernel typeMicrokernel
Default
user interface
Graphical user interface and special keyboard keys
LicenseProprietary
Preceded byMOS
Succeeded byArthur, renamed RISC OS

ARX was an unreleased Mach-like operating system written in Modula-2+ developed by Acorn Computers Ltd in the Acorn Research Centre in Palo Alto for Acorn's new Archimedes personal computers based on the ARM architecture RISC CPUs. Later stages of development were continued by Olivetti after it acquired Acorn, before the project was cancelled and replaced.